Определите степени окисления каждого элемента в соединениях: H2SO3,
H3AsO4, Ca3N2, Mg(OH)2, LiOH, K2SiO3, CaCO3, FeSO4.
H3AsO4, Ca3N2, Mg(OH)2, LiOH, K2SiO3, CaCO3, FeSO4.
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H(+1) S(+4) O(-2)
H(+1) As(+5) O(-2)
Ca(+2) N(-3)
Mg (+2) O(-2) H(+1)
Li(+1) O(-2) H(+1)
K(+1) Si(+4) O(-2)
Ca(+2) C(+4) O(-2)
Fe(+2) S(+6) O(-2)